Excellent advice. I’m retired now (mostly) but I wish I had done more of this in the earlier days of my business. Among some microbusinesses there’s a notion that one doesn’t want to give away one’s “secrets” to competitors, and that interferes with proper cooperation.
I covered the idea of working with other small businesses to be able to better compete with large corporations:
Work With “Competitors” To Cross and Co-Market And Compete With “The Big Boys”